Analysis on Equivalence between Transfer Function and Equivalent Circuit Simulation in General Hamiltonian Modeling

Take generator system included AVR (automatic voltage regulator) and PSS (power system stabilizer) as an example, Using the time simulation method, Study the equivalence between the transfer function model and the equivalent circuit simulation, and establish the corresponding relations between the circuit structures, internal parameters and transfer function parameters, based on the energy of equivalent circuit, the Hamiltonian function of transfer function is derived indirectly, and the Hamiltonian model is established. The study in this paper provides a new way to establish generalized Hamiltonian model for linear system based on transfer function.

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A novel real time simulation method for grid-connected wind generator system by using RTDS

10.1109/icems12746.2007.4412129 ◽

2007 ◽

Author(s):

Dae-Jin Park ◽

Young-Ju Kim ◽

Mohd Hasan Ali ◽

Minwon Park ◽

In-Keun Yu

Keyword(s):

Real Time ◽

Simulation Method ◽

Generator System ◽

Real Time Simulation ◽

Wind Generator ◽

Time Simulation

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Study on complicated nonlinear phenomena in ultrasonic infrared thermography using circuit simulation method

2014 IEEE Far East Forum on Nondestructive Evaluation/Testing ◽

10.1109/fendt.2014.6928226 ◽

2014 ◽

Author(s):

Kai Zheng ◽

Jiang Zheng ◽

Shu-yi Zhang

Keyword(s):

Infrared Thermography ◽

Circuit Simulation ◽

Simulation Method ◽

Nonlinear Phenomena ◽

Ultrasonic Infrared Thermography

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A New Parameter-Extraction Method for DGS and its Application to the Low-Pass Filter

Active and Passive Electronic Components ◽

10.1080/08827510310001616812 ◽

2004 ◽

Vol 27 (2) ◽

pp. 119-123 ◽

Cited By ~ 9

Author(s):

Haiwen Liu ◽

Xiaowei Sun ◽

Zhengfan Li

Keyword(s):

Equivalent Circuit ◽

Extraction Method ◽

Circuit Simulation ◽

Equivalent Circuit Model ◽

Design Procedure ◽

Parameter Extraction ◽

Defected Ground Structure ◽

Pass Filter ◽

Low Pass Filter ◽

Low Pass

A new and simple parameter-extraction method for the equivalent circuit of defected ground structure (DGS) is presented. Using this method, circuit simulation, based on the DGS equivalent-circuit model, show excellent agreements with the electromagnetic (EM) simulation. Further, our method is applied effectively to design a low-pass filter (LPF) with DGS. Comparison between simulation and measurement confirm the validity of the LPF configuration and design procedure. Simple structure and high power handling capability are obtained from the proposed LPF.

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Application of communication network theory to the electromagnetic seismograph

Bulletin of the Seismological Society of America ◽

10.1785/bssa05405a1479 ◽

1964 ◽

Vol 54 (5A) ◽

pp. 1479-1489

Author(s):

S. Dopp

Keyword(s):

Communication Network ◽

Transfer Function ◽

Equivalent Circuit ◽

Network Theory ◽

Band Pass Filter ◽

Pass Filter ◽

Electromagnetic Seismograph ◽

Band Pass

Abstract Communication network theory is applied to the equivalent circuit of the electromagnetic seismograph. The seismograph's transfer function is derived in the general case of an arbitrary linear passive coupling network between pendulum and galvanometer. Examples are given, one of which refers to the construction of a band-pass filter in the form of a lattice of filter galvanometers.

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Research on Output Waveform of Generator with Rectifier Load considering Commutation Overlap Angle

Mathematical Problems in Engineering ◽

10.1155/2021/9920703 ◽

2021 ◽

Vol 2021 ◽

pp. 1-12

Author(s):

Bingyi Zhang ◽

Gongfei He ◽

Guihong Feng

Keyword(s):

Circuit Simulation ◽

Harmonic Distortion ◽

Simulation Method ◽

Conduction Time ◽

Current Waveform ◽

Voltage Waveform ◽

Rectifier Circuit ◽

Output Waveform ◽

Output Side ◽

Distortion Rate

The purpose of this paper is to study the influence of the uncontrolled rectifier circuit on the generator’s output waveform when considering the commutation overlap angle. Taking the nonsalient permanent magnet (PM) generator directly connected with the uncontrolled rectifier circuit as an example, the equivalent circuit of the generator with rectifier load is established, and the commutation process of the rectifier circuit is analyzed when the effect of the commutation overlap angle is considered. The output waveforms of generator’s output side are obtained by analytical method, circuit simulation method, field-circuit coupled simulation method, and experimental method. The validity of the analysis methods is demonstrated by comparison. According to the results of analytical analysis, we know the characteristics of the output waveform under the influence of the commutation overlap angle. The existence of the commutation overlap angle will cause the voltage waveform to concave or convex, prolong the conduction time of the winding, and result in phase difference between the voltage waveform and current waveform. The influence of synchronous inductance and extra inductance on the output waveforms and harmonic distortion rate is analyzed. The research of this paper provides a theoretical basis for improving the output waveform of the generator with rectifier load.

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The Application of Fault Injection Using Circuit Simulation in Testability Verification

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.347-350.937 ◽

2013 ◽

Vol 347-350 ◽

pp. 937-941

Author(s):

Yuan Wei Yin ◽

Chao Xuan Shang ◽

Yan Heng Ma ◽

Gang Li

Keyword(s):

Fault Injection ◽

Circuit Simulation ◽

Simulation Method ◽

Structure And Function ◽

Injection System ◽

Injection Method ◽

Injection Technology ◽

And Function

The fault injection technology is an important aspect in testability verification, because the actual fault injection in equipment can damage itself, so using circuit simulation fault injection method to instead. Research on the simulation method that based on PSPICE, using VC++ software to design a simulated fault injection system, its structure and function to achieve workflow introduced. Finally, taking a circuit for example uses the system to fault injection and analysis to prove the availability and correctness of the system.

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Efficient time simulation method for predicting the 100-year extreme responses of an offshore platform

Ships and Offshore Structures ◽

10.1080/17445302.2019.1623970 ◽

2019 ◽

Vol 14 (sup1) ◽

pp. 401-409

Author(s):

M. K. Abu Husain ◽

N. I. Mohd Zaki ◽

G. Najafian

Keyword(s):

Simulation Method ◽

Offshore Platform ◽

Time Simulation ◽

Extreme Responses

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Biosensor Using a One-Port Interdigital Capacitor: A Resonance-Based Investigation of the Permittivity Sensitivity for Microfluidic Broadband Bioelectronics Applications

Electronics ◽

10.3390/electronics9020340 ◽

2020 ◽

Vol 9 (2) ◽

pp. 340 ◽

Cited By ~ 1

Author(s):

Giovanni Crupi ◽

Xiue Bao ◽

Oluwatosin John Babarinde ◽

Dominique M. M.-P. Schreurs ◽

Bart Nauwelaers

Keyword(s):

Equivalent Circuit ◽

Circuit Simulation ◽

Equivalent Circuit Model ◽

Microfluidic Channel ◽

Circuit Model ◽

Daily Lives ◽

Fem Simulations ◽

Interdigital Capacitor ◽

High Frequency Structure Simulator ◽

Local Equivalent

Electronics is a field of study ubiquitous in our daily lives, since this discipline is undoubtedly the driving force behind developments in many other disciplines, such as telecommunications, automation, and computer science. Nowadays, electronics is becoming more and more widely applied in life science, thus leading to an increasing interest in bioelectronics that is a major segment of bioengineering. A bioelectronics application that has gained much attention in recent years is the use of sensors for biological samples, with emphasis given to biosensors performing broadband sensing of small-volume liquid samples. Within this context, this work aims at investigating a microfluidic sensor based on a broadband one-port coplanar interdigital capacitor (IDC). The microwave performance of the sensor loaded with lossless materials under test (MUTs) is achieved by using finite-element method (FEM) simulations carried out with Ansoft’s high frequency structure simulator (HFSS). The microfluidic channel for the MUT has a volume capacity of 0.054 μL. The FEM simulations show a resonance in the admittance that is reproduced with a five-lumped-element equivalent-circuit model. By changing the real part of the relative permittivity of the MUT up to 70, the corresponding variations in both the resonant frequency of the FEM simulations and the capacitance of the equivalent-circuit model are analyzed, thereby enabling assessment of the permittivity sensitivity of the studied IDC. Furthermore, it is shown that, although the proposed local equivalent-circuit model is able to mimic faithfully the FEM simulations locally around the resonance in the admittance, a higher number of circuit elements can achieve a better agreement between FEM and equivalent-circuit simulation over the entire broad frequency going range from 0.3 MHz to 35 GHz.

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